Has Michael Tsapakos, MD received payments from drug or device companies?

Yes. Drug and device makers reported $210,510 in general payments to Michael Tsapakos, MD across 105 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Michael Tsapakos, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Michael Tsapakos, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Michael Tsapakos, MD

Diagnostic Radiology · Lebanon, NHNPI 1952321036

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $210,510 of the $210,510 with a category attached, or 100.0%. Merck accounts for 70.3% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2021 at $86,405 and has fallen 64.8% since, to $30,430 in 2025. Among diagnostic radiology clinicians in NH with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$210,510in general payments, 2019–2025

Across 105 payments — averaging $2004.85 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Merck$148K
Pfizer$35K
Seagen Inc.$27K

$218,252in research payments, 2019–2025

Across 17 payments — averaging $12,838 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

E.r. Squibb & Sons, L.L.C.$183K
Takeda Pharmaceuticals U.S.A., Inc.$27K
Regeneron$3K
Genentech, Inc.$2K
Pfizer$2K
Hexal AG$735

What the payments were for

Consulting fees$210,510100%

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Merck	81	$147,905
Pfizer	18	$35,475
Seagen Inc.	6	$27,130

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

KEYTRUDA$116,620
PREVNAR 20$33,945
LENVIMA$29,740

How this compares

$210,510 in reported general payments places this provider in the 95th percentile of 170 diagnostic radiology providers in New Hampshire.

See all diagnostic radiology providers in New Hampshire →

Medicare billing

Part B allowed, 2024

$211,043

Medicare patients

1,792

Services billed

4,487

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Other diagnostic radiology in Lebanon

Jocelyn ChertoffLebanon$638K
Clifford EskeyLebanon$52K
Eric HofferLebanon$5K
Stephen GuerinLebanon$2K
Matthew MaederLebanon$2K
Mohamad KassarLebanon$1K
David PastelLebanon$1K
Debra MonticcioloLebanon$559
Roberta Diflorio AlexanderLebanon$500
Jonathan FarrellLebanon$444

See the full list for New Hampshire →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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